I’ve created a discussion forum specifically for questions about the CRISPR/Cas9 system. It can be found here: https://groups.google.com/forum/?hl=en#!forum/worm-crispr.
I also made a website for sharing updated Cas9-triggered homologous recombination protocols from the Goldstein lab: http://wormcas9hr.weebly.com/.
I hope these will be valuable resources for the community.
Cheers,
Dan Dickinson